The multiple order waveplates comprise a single plate made from laser grade crystalline quartz. They are AR-coated on both sides and are available unfitted or fitted in an anodised aluminium ring. The standard retardances are λ/4 and λ/2; additional values are available on request.
| waveplates | Multiple order (for two wavelengths) |
| Thickness | 0.3 to 1.3 mm |
| Wave front deformation | λ/10 @ 632.8 mm |
| Surface quality | 10/5 scratch/dig |
| Parallelism | 0.5 seconds |
| Retardance tolerance | ± 0.005 λ @ 632.8 nm |
| Coating | Antireflective, R < 0.25% per surface |
| Damage threshold | 1 kW/cm2 – CW, 3.5 J/cm2 @ 10 ns |
| Diameter | 10, 12.5, 17.5, 25.4, 38.1 and 50.8 mm, +0.00/-0.25 mm with or without appropriately sized retaining ring |
| Thickness in retaining ring | dependent on the diameter of the retaining ring |
